/Engine/Plugins/Experimental/GeometryScripting/Source/GeometryScriptingCore/Public/GeometryScript/MeshVertexColorFunctions.h
Set the colors in the TargetMesh VertexColor Overlay identified by the Selection to a constant value. For a Vertex Selection, each existing VertexColor Overlay Element for the vertex is updated. For a Triangle or PolyGroup Selection, all Overlay Elements in the identified Triangles are updated.
static [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * SetMeshSelectionVertexColor ( [UDynamicMesh](API\Runtime\GeometryFramework\UDynamicMesh) * TargetMesh, [FGeometryScriptMeshSelection](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptMeshSelection) Selection, [FLinearColor](API\Runtime\Core\Math\FLinearColor) Color, [FGeometryScriptColorFlags](API\Plugins\GeometryScriptingCore\GeometryScript\FGeometryScriptColorFlags) Flags, bool bCreateColorSeam, [UGeometryScriptDebug](API\Plugins\GeometryScriptingCore\GeometryScript\UGeometryScriptDebug) * Debug )